Before I forget (again), I went and added a link in the Links section to Sacred-Texts.com
Check it out. It's an awesome website that has wonderful people working there. They've taken the time to type up and assemble every sacred text from every religion they could get their hands on. It's a wonderful resource, especially for the writer who loves to use mythology and religions from cultures around the world.
Seriously - they've got everything from Christianity to Buddhism to Wicca to Druids to Hinduism to Thelema to Shinto and Icelandic mythology. New texts go up fairly regularly, from what I can tell, and they've even got a CD-ROM you can buy with the entire collection on it.
Definitely a site worth checking out.